VTK Fits JDDE New Tractor Valve Train Kit Fits John Deere Tractor DOne New Aftermarket Replacement Valve Train Kit Fits John Deere Model D Tractor This aftermarket replacement valve train kit is designed for the Fits John Deere (Fits JD) Model D tractor and contains all the key cylinder head valve components needed for a complete valve service or engine rebuild. The Fits John Deere Model D was a two cylinder, liquid cooled tractor produced from 1923 to 1953 and is one of the most iconic tractors in agricultural